I get a lot of gas in my stomach when I lay down. It gets so bad it wakes me up sometimes. By morning, I have very bad cramping and pain even in my back from it. The first thing I do in the morning is rush to the bathroom. Is this a normal part of IBS? I`ve always had it but it was never this severe before and I`ve never had this cramping at night before. I don`t know what to think.